Answer: C... Because Zinc is made of only one type of atoms.
Explanation: All elements are made of one type of atom. Pure gold is made out of only gold atoms, silver out of only silver atoms, etc.
Answer:
Add G and H to determine the atomic mass for helium
Explanation:
A bond between two atoms that SHARE electrons
<u><em>Ponds and rivers are two types of . . . . freshwater ecosystems</em></u>
